Why Choose the Mersen ATQ1/2 Time-Delay Midget Fuse?
The Mersen ATQ1/2 is a high-quality time-delay midget fuse designed to provide dependable supplementary overcurrent protection for industrial control circuits, transformers, solenoids and other low-current electrical equipment. As part of the trusted Mersen Amp-Trap® ATQ series, it is engineered to withstand normal inrush currents while responding reliably to sustained overloads and short circuit conditions.
Its time-delay characteristic helps minimise nuisance fuse operation during transformer energisation, motor starting and other temporary current surges. The compact 10 × 38 mm midget format allows simple installation into compatible fuse holders where space is limited.
With a rated current of 1/2 A (0.5 A), a 500 V AC voltage rating and an interrupting capacity of 10 kA, the Mersen ATQ1/2 is an excellent choice for supplementary protection of industrial electrical equipment where available short-circuit current does not exceed 10,000 A. It is not intended for branch circuit protection.
Key Advantages
- Time-delay operation accommodates normal equipment inrush currents.
- 0.5 A current rating for sensitive industrial control circuits.
- 500 V AC voltage rating.
- 10 kA interrupting rating for supplementary circuit protection.
- Compact 10 × 38 mm midget fuse design.
- Compatible with UltraSafe™ and other standard midget fuse holders.
Key Features
- Mersen Amp-Trap® ATQ series.
- Time-delay midget fuse.
- 1/2 A (500 mA) current rating.
- 500 V AC rated voltage.
- Time-delay characteristic (approximately 12 seconds at 200% rated current).
- Ferrule terminals.
- 10 × 38 mm (13/32 in × 1-1/2 in) cylindrical construction.
- UL Listed, CSA Certified and RoHS compliant.
Reliable Time-Delay Protection for Industrial Equipment
The Mersen ATQ1/2 is specifically designed for supplementary protection of lighting circuits, transformers, solenoids, motors and industrial control equipment. Its time-delay design allows temporary inrush currents to pass without unnecessary fuse operation while still providing dependable protection against sustained overloads and fault currents.
Its compact midget format, robust ferrule construction and wide range of available ratings make the Amp-Trap® ATQ series a popular choice for OEM machinery, industrial panels and electrical control systems requiring reliable supplementary protection.
Typical Applications
- Industrial control panels.
- Control transformers.
- Lighting circuits.
- Solenoid circuits.
- Motor control circuits.
- Instrumentation equipment.
- OEM machinery.
- Supplementary circuit protection.
